In a poll fielded on the Optometry Times website, we asked ODs what objective test for dry eye they think is the most important.
A total of 265 responses were tallied. The multiple-choice poll answers included:
• Conjunctival staining
• Corneal staining
• Meibography gland expression
• Non-invasive tear film break-up time
• Phenol red thread test
• Tear osmolarity
• Tear film break-up time with fluorescein
In first place—but not overwhelmingly so—is tear film break-up time with fluorescein as the most important objective dry eye test with 33 percent of respondents making this choice.
After a sharp drop, corneal staining was second choice. Only 17 percent of respondents think it’s the most important objective test.
Third and fourth place were close: 12 percent of ODs think tear osmolarity testing is most important, and 11 percent think non-invasive tear break-up time is.
Conjunctival staining comes in fifth with 9 percent of respondents.
Schirmer hits the sixth spot with 7 percent of ODs thinking it is most important.
Meibography follows in seventh place (5 percent).
Tied for last as the most important objective dry eye test are MMP-9 and phenol red thread test with 1 percent of respondents.